How does a fan rotate?
by 
labeeb xaman
ANSWERS: 5
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a motor, connected to fan blades?
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the motor is stationary, the fan blades rotate. As in the earth goes around the sun, and not the sun around the earth. As for the driving force, it would be the electric motor. http://en.wikipedia.org/wiki/Electric_motor
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An electric motor contains several coils of wire around a conductor creating several magnets which pull the ferromagnetic rotor at the appropriate time. Using AC current this pull is turned off as the conductor nears the magnet so that it is atracted to the next magnet and so on...
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1) round and round. 2) The fan is mounted on the end of a nearly friction free rotating axis driven by a motor. 3) electric current causes wirecoils to generate a pattern of magnetic fields that interact with permanent magnets to generate torque. This torque is transferred to the fan making it rotate.
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It spins
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